Question: Was the period of Margaret Thatcher ended as member ended on 2013-4-8?
Paraphrase: Did Margaret Thatcher stop being a member on 2013/4/8?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q7416 p:P463 ?s . ?s ps:P463 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'2013')) }